Bollinger Bands: Using a decimal in deviation

 
Hey,

I'm drafting this litle EA of mine and I've been banging my head against the wall trying to force a decimal (1.5) in the deviation value, that is used in calculating the upper and lower BB bands. Is it even possible? And if so, then how exactly would one go about it? The variable is defined as double so it should be fine as far as that goes.

Thanks in advance
 
Calculate the bands using iStdDev() * yourDeciamalFactor
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